Sakura Seiki Petal (complete set) I B Spy camera

Sakura Seiki Petal camera.
This camera, which is considered by the Guinness Book of Records to be the world's smallest camera, weighs only 90 grams, has a diameter of 2.7 cm and a depth of 1.5 cm. It can take six round photos on film cut to a diameter of 2.5 cm. The camera is equipped with a 12 mm fixed-focus lens and an f/5.6 aperture, and has a small external viewfinder. The shutter offers an instant mode with a shutter speed of 1/50 second and a Bulb setting, without film transport or a mechanism to prevent double exposure.

The model shown is engraved on the back with "MIOJ", which stands for "Made in Occupied Japan". In the period from the end of the war until 1951, the US mandated this marking on all exported Japanese products instead of the traditional "Made in Japan".

The changing of the image angle is done by turning an external dial, which also indicates the current frame number and functions as a frame counter.

The documentation, supplied in a wooden case, is unique because it fits on a single page, printed on rice paper.